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2017

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Articles 3721 - 3750 of 8353

Full-Text Articles in Engineering

Cfd Optimization Of The Cooling Of Yosemite Open Compute Server, Aditya Gupta May 2017

Cfd Optimization Of The Cooling Of Yosemite Open Compute Server, Aditya Gupta

Mechanical and Aerospace Engineering Theses - Archive

Rising energy demands in data centers have constantly made thermal engineers to think and come up with innovative cooling solutions in data centers. It is of utmost importance to have control over the environmental impact of Data Centers. In 2011, the Open Compute Project was started which aimed at sharing energy efficient practices for data centers. The hardware and electrical specifications of the first open compute server – Freedom was shared on open compute project’s website. It was a vanity free design and its components were custom designed. It was deployed in one of the data centers in Prineville, Oregon …

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Thermal Optimization And Validation Of Gan High Electron Mobility Transistor, Tanmay Pradip Kavade May 2017

Thermal Optimization And Validation Of Gan High Electron Mobility Transistor, Tanmay Pradip Kavade

Mechanical and Aerospace Engineering Theses - Archive

Gallium Nitride (GaN) is a binary III/V wide band gap semiconductor used in power electronics for operations at high power densities and high speeds. GaN has excellent characteristics like high break-down voltage, high thermal conductivity, and high electron saturation velocity which have led to an intensive study and wide use of GaN in many fields. Some of these fields range from amplifiers, MMIC, laser diodes, pulsed radars and counter-IED jammers to CAT-V modules and fourth generation infrastructure base-stations. Currently GaN devices suffer from high temperature due to self-heating which reduces the mean time to failure. In this study package level …

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Conjugate Heat Transfer And Thermo-Structural Analysis Of The Actively Cooled Multi-Stage Conical Nozzle And Hypersonic Low-Reynolds Diffuser Of The New Arc-Heated Wind Tunnel (Awht-Ii) Of The University Of Texas At Arlington, David Ray Campbell May 2017

Conjugate Heat Transfer And Thermo-Structural Analysis Of The Actively Cooled Multi-Stage Conical Nozzle And Hypersonic Low-Reynolds Diffuser Of The New Arc-Heated Wind Tunnel (Awht-Ii) Of The University Of Texas At Arlington, David Ray Campbell

Mechanical and Aerospace Engineering Theses - Archive

Arc-heated wind tunnels are the primary test facility for screening and qualification of candidate materials for hypersonic thermal protection systems (TPS). Via an electric arc that largely augments the enthalpy (by tens of MJ/kg) of the working fluid (Air, Nitrogen, CO2 in case of Mars-entry studies) passed through a converging-diverging nozzle at specific stagnation conditions, different regimes encountered in entry and re-entry hypersonic aerothermodynamics can be simulated. Because of the high-enthalpies (and associated temperatures that generally exceed the limits required by the thermo-structural integrity of the facility) the active cooling of the arc-heated wind tunnel’s parts exposed to the working …

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Structural Optimization & Reliability Of 3d Package By Studying Crack Behavior On Tsv & Beol & Impact Of Power Cycling On Reliability Flip Chip Package, Unique Rahangdale May 2017

Structural Optimization & Reliability Of 3d Package By Studying Crack Behavior On Tsv & Beol & Impact Of Power Cycling On Reliability Flip Chip Package, Unique Rahangdale

Mechanical and Aerospace Engineering Theses - Archive

The 3D packaging is stacked of chips on top of another which is emerging as a powerful technology that satisfies such integrated circuit (IC) package demands. Most of the stress develops at interfaces and the interface delamination of TSV may encounter which is mainly driven by a shear stress concentration at the point. In this study, the effect of package structure on the failure metric of the 3D package has been studied. J-integral has been used to quantify the crack driving force. The crack is modeled at the TSV and BEOL (Back End of the Line) and the die -substrate …

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Design Optimization Of Race Car Steering Knuckle For Additive Manufacturing, Yobani Martinez May 2017

Design Optimization Of Race Car Steering Knuckle For Additive Manufacturing, Yobani Martinez

Mechanical and Aerospace Engineering Theses - Archive

Additive manufacturing enables increased geometric complexity in structural configuration compared with conventional manufacturing methods. A Physics-first Computer Aided engineering (CAE) process beginning with structural topology optimization enables engineers to take advantage of this increased geometric design freedom. This work develops and demonstrates the steps and tools necessary to realize complex design configuration for additive manufactured. This report looks at the race car steering knuckle using the UTA FSAE upright as a case study. The stiffness driven upright component design is executed using topology optimization and NURBS based surface modeling tools. The topology optimization model is developed for 3 different load …

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Thermal Management Of High Power Multi Chip Module By Design Optimization Of Segregated Serpentine Flow Cold Plate, Krishna Chaitanya Siripurapu May 2017

Thermal Management Of High Power Multi Chip Module By Design Optimization Of Segregated Serpentine Flow Cold Plate, Krishna Chaitanya Siripurapu

Mechanical and Aerospace Engineering Theses - Archive

Data center environment cooling requirements became a challenge with rapid increasing microprocessor power densities which leads to non-uniform distribution of temperature. A practical cooling solution which relies on the segregated flow of cooling resources based on power density for thermal management of high power equipment is introduced. This minimizes energy consumption of cooling infrastructure. Performance of existing cold plate is previewed and amount of savings possible is shown from numerical analysis of segregated model. Model is designed by considering manufacturing feasibility to make samples for proposed solution for future experimental study. A multi-chip module is chosen as a base for …

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Ag Nano-Dendritic Three-Dimensional (3d) Surface-Enhanced Raman Scattering (Sers) Substrate For In-Situ Liquid Media Detection, Milind Mansing Pawar May 2017

Ag Nano-Dendritic Three-Dimensional (3d) Surface-Enhanced Raman Scattering (Sers) Substrate For In-Situ Liquid Media Detection, Milind Mansing Pawar

Material Science and Engineering Theses - Archive

Continuous monitoring of certain environmental pollutants, biological species, chemical species, and explosives are of utmost importance in recent times. Surface-enhanced Raman scattering (SERS) provides most promising option as it is a highly sensitive technique which allows for ultrasensitive detection of molecules and provides excellent structural information. To obtain rich results through Surface-enhanced Raman scattering, proper design of enhancing substrate plays vital role. Contemporary SERS substrates don’t provide ease to detect liquid analytes for in-situ spectroscopy. Liquid media detection through SERS relies on highly statistical binding of analytes to SERS-sensitive hot spots. Moreover, it becomes extremely difficult to detect flowing liquid …

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A Liver-Kidney Biosubsystem, Brian J. Budnik May 2017

A Liver-Kidney Biosubsystem, Brian J. Budnik

Bioengineering Dissertations - Archive

Each year many patients die waiting for a transplant organ to become available. Increasing the available number of transplant organs would save lives. The donor pool could be expanded if organs which are considered to be of uncertain viability could be utilized for transplantation. Currently, when there is any doubt about the viability of the organ, it is discarded. This occurs because there has been no way to confirm its viability other than to transplant it and risk the life of the recipient. Thus, many organs that are in fact good are wasted. Some might not be fully viable but …

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Response Of Unsaturated Soils Under Monotonic And Dynamic Loading Over Moderate Suction States, Aritra Banerjee May 2017

Response Of Unsaturated Soils Under Monotonic And Dynamic Loading Over Moderate Suction States, Aritra Banerjee

Civil Engineering Dissertations - Archive

The understanding of the mechanical behavior of the unsaturated soils has been significantly enhanced due to the recent advancement of technology and modifications to the conventional testing devices. However, the implementation of the concepts of unsaturated soil has lagged, mainly due to the risks associated with the development of civil infrastructure based on practically untested theories and the limited reliable prediction methods for compacted, expansive, residual, and collapsible soils, which requires reliable and comprehensive experimental data. Moreover, the tests on unsaturated soils are enormously time consuming and often exorbitantly expensive, which further hinders the use of unsaturated soil mechanics in …

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Development Of Cancer Trap For Capturing Cancer Cells That Metastasize In The Peritoneal Cavity: A Preliminary Study, Chuka I. Okpokwasili May 2017

Development Of Cancer Trap For Capturing Cancer Cells That Metastasize In The Peritoneal Cavity: A Preliminary Study, Chuka I. Okpokwasili

Bioengineering Theses - Archive

Our laboratory has recently developed an implantable device - cancer trap that can recruit and trap circulating cancer cells inside the bloodstream. Since several types of cancer cells can metastasize inside the peritoneal cavity, this study explores the possibility of using cancer traps to recruit esophageal and prostate cancer cells inside the peritoneum. Using prostate cancer and esophageal cancer cells as model cancers, this thesis shows that cancer traps can capture cancer cells inside the peritoneal space. EPO releasing traps was also shown to reduce the spread of prostate cancer as well as esophageal cancer compared to controls. Using multiple …

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Performance Of Cement Treated Recycled Aggregates Under Wetting-Drying Cycles In Pavement Base, Saif Bin Salah May 2017

Performance Of Cement Treated Recycled Aggregates Under Wetting-Drying Cycles In Pavement Base, Saif Bin Salah

Civil Engineering Theses - Archive

Resilient Modulus (MR) is one of the most important stiffness parameter to determine the thickness of a pavement layer (AASHTO 2003 pavement design guideline). Recent studies conducted by researchers on the variability of MR with wetting-drying (WD) and freeze-thaw (FT) cycles show that long-term durability is an important criterion to be considered in designing pavement base with recycled materials. At present, the design procedure does not consider the effect of deterioration of pavement layers due to seasonal variations and limited studies have been conducted to evaluate the effect of environmental deterioration on the reclaimed asphalt pavement (RAP) and recycled crushed …

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Effect Of Manure And Enzyme On The Degradation Of Organic Fraction Of Municipal Solid Waste In Biocell, Anuja Sapkota May 2017

Effect Of Manure And Enzyme On The Degradation Of Organic Fraction Of Municipal Solid Waste In Biocell, Anuja Sapkota

Civil Engineering Theses - Archive

More than half of total Municipal Solid Waste (MSW) generated is composed of organic degradable waste for developed countries and the percentage is even higher for developing countries. Handling of organic fraction of MSW has always been challenging due to environmental and economic reasons. Among all the MSW management alternatives, Sustainable Biocell concept has potential to solve environmental and economic concerns related to organic waste. This potential of Sustainable Biocell can be enhanced by accelerated decomposition of waste. Accelerated decomposition of organic fraction of MSW can be achieved by the addition of nitrogen rich, macro and micro nutrients such as …

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The Study Of Screws Under Bending For Curtain Wall Head And Sill Anchors, Humberto Madero Mcentee May 2017

The Study Of Screws Under Bending For Curtain Wall Head And Sill Anchors, Humberto Madero Mcentee

Civil Engineering Theses - Archive

The study of screws under bending is a very important topic for the solution of anchors (connections) of the vertical members of a Curtain Wall or Storefront that connects top and bottom thru Head and Sill anchors. When there are shims that create a gap between the connected anchor and the structure that connects to, the screws connecting the anchor to the structure would be under bending; very few or any tests are available showing the capacity of a screw under bending; this thesis would present tests and theory of screws under bending, and discussion/clarification of the behavior of these …

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Applications Of Ultra-High Performance Fiber-Reinforced Concrete On Flexural Structural And Architectural Members, Venkatesh Babu Kaka May 2017

Applications Of Ultra-High Performance Fiber-Reinforced Concrete On Flexural Structural And Architectural Members, Venkatesh Babu Kaka

Civil Engineering Theses - Archive

This thesis presents the test results of a study on flexural and shear behavior of Ultra-High-Performance Fiber-Reinforced concrete (UHP-FRC) beams, reinforced with Grade 60 steel (ASTM A615/A615M), Grade 100 steel (ASTM A1035/A1035M) and Basalt fiber reinforced polymer (BFRP) bars. Ultra-high-performance fiber-reinforced concrete (UHP-FRC) has high compressive strength (> 22 ksi (150 MPa)) and exceptional compressive ductility. The use of UHP-FRC provides new opportunities for future infrastructure. However, structural design criteria have not been developed to fully utilize UHP-FRC’s excellent mechanical properties. Maximum useable compressive strain, ecu, specified in the current design codes (ACI 318 Building Code and AASHTO LRFD Bridge …

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A Comparison Of Smart City Indicators For Three Top Ten Us Cities, Rasoul Adnan Abbas May 2017

A Comparison Of Smart City Indicators For Three Top Ten Us Cities, Rasoul Adnan Abbas

Civil Engineering Theses - Archive

The world population has been increasing each year, and the immigration from rural to urban cities has increased as well. The United Nations has estimated that more than 66% of people worldwide live in urban area, and this urbanization trend will continue to increase, thereby generating challenges to the cities as they strive to provide health care, schools, and transportation. The urban population explosion has also caused problems to the environment and overall urban economy as the need for more housing, jobs, and community services require smart solutions. The term, smart city, has many definitions, but all of them agree …

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Investigation Of Reuse Of Coal Fly Ash To Mitigate Landfill Methane Gas, Amin Homaei May 2017

Investigation Of Reuse Of Coal Fly Ash To Mitigate Landfill Methane Gas, Amin Homaei

Civil Engineering Theses - Archive

Methane (CH4) is a powerful greenhouse gas (GHG), contributing 32% of current climate forcing (US EPA, 2015). In 2014 the White House released the “Strategy to Cut Methane Emissions” as part of the Climate Action Plan. Landfills are one of the strategy’s 4 key sectors, contributing 18% of US methane emissions (US EPA, 2013). Even when landfills capture methane and burn it to produce electricity, around 25% of methane still leaks through landfill covers (US EPA, 2005). In natural environments, iron oxides, manganese oxides, nitrates, and sulfates have been shown to stimulate microbial anaerobic oxidation of methane (AOM) (Sivan et …

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Application Of Strand-Cartesian Interfaced Solver On Flows Around Various Geometries, Yushi Yanagita May 2017

Application Of Strand-Cartesian Interfaced Solver On Flows Around Various Geometries, Yushi Yanagita

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This work examines the application of a high-order numerical method to strand-based grids to solve the Navier-Stokes equations. Coined "Flux Correction", this method eliminates error terms in the fluxes of traditional second-order finite volume Galerkin methods. Flux Correction is first examined for applications to the Reynolds-Averaged Navier-Stokes equations to compute turbulent flows on a strictly strand-based domain. Flow over three geometries are examined to demonstrate the method’s capabilities: a three-dimensional bump, an infinite wing, and a hemisphere-cylinder configuration. Comparison to results obtained from established codes show that the turbulent Flux Correction scheme accurately predicts flow properties such as pressure, velocity …

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Sparse Coding On Stereo Video For Object Detection, Sheng Y. Lundquist, Melanie Mitchell, Garrett T. Kenyon May 2017

Sparse Coding On Stereo Video For Object Detection, Sheng Y. Lundquist, Melanie Mitchell, Garrett T. Kenyon

Computer Science Faculty Publications and Presentations

Deep Convolutional Neural Networks (DCNN) require millions of labeled training examples for image classification and object detection tasks, which restrict these models to domains where such a dataset is available. We explore the use of unsupervised sparse coding applied to stereo-video data to help alleviate the need for large amounts of labeled data. In this paper, we show that unsupervised sparse coding is able to learn disparity and motion sensitive basis functions when exposed to unlabeled stereo-video data. Additionally, we show that a DCNN that incorporates unsupervised learning exhibits better performance than fully supervised networks. Furthermore, finding a sparse representation …

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Novel Complementary Metasurfaces For The Orbital Angular Momentum Generation, Menglin L.N. Chen, Li Jun Jiang, Wei E.I. Sha May 2017

Novel Complementary Metasurfaces For The Orbital Angular Momentum Generation, Menglin L.N. Chen, Li Jun Jiang, Wei E.I. Sha

Electrical and Computer Engineering Faculty Research & Creative Works

Besides amplitude, phase and polarization, wavefront is an important property of electromagnetic (EM) waves. EM waves with twisted wavefronts are known to carry orbital angular momentum (OAM). In this paper, a complementary-type metasurface is proposed to generate an OAM beam at microwave regime. Two metasurfaces that can produce OAM of order 2 and 4 are designed. By using our novel design methods, which are based on circuit model and dyadic Green's function, a high conversion efficiency has been achieved with a very low profile.

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Design And Evaluation Of Modified Centerline Rumble Strips, Yong-Rak Kim, Tae Sun You, Laurence Rilett May 2017

Design And Evaluation Of Modified Centerline Rumble Strips, Yong-Rak Kim, Tae Sun You, Laurence Rilett

Nebraska Department of Transportation: Research Reports

A centerline rumble strip (CLRS) is primarily installed on the centerline of undivided two-lane and two-way roadways to alert drivers that they are moving out of their intended travel lane. The main purpose of CLRSs is to reduce crossover collisions typically caused by inattentive, distracted, drowsy, or fatigued drivers. Despite the safety benefits, CLRSs that were milled over or adjacent to the centerline joint may increase or accelerate the deterioration and degradation of the pavement structure, which has been observed in Nebraska pavements. In this research project, new (or modified) CLRS designs were sought to reduce pavement damage, while satisfying …

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Synthesis And Characterization Of Tribologically Enhanced Hydrogels, Emily Lindberg May 2017

Synthesis And Characterization Of Tribologically Enhanced Hydrogels, Emily Lindberg

Renée Crown University Honors Thesis Projects - All

Hydrogels are a biomaterial that have potential for a variety of different biomedical applications. However, these hydrogels often have poor friction and wear properties. This document investigates the stability of a proposed method to resolve this limitation. The proposed solution is a blend of a biocompatible polymer, poly(vinyl alcohol) (PVA) with different concentrations of the zwitterionic polymer, polymer Poly([2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) ammonium hydroxide) p(MEDSAH). Previous analysis has shown that the pMEDSAH acted as a boundary lubricant, resulting in a reduction of the coefficient of friction. The pMEDSAH was successfully synthesized at three different molecular weights and a significantly higher contact …

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Numerical And Analytical Study Of Curvature Effects In Laminar Shock Wave/Boundary Layer Interactions, James Ray Grisham May 2017

Numerical And Analytical Study Of Curvature Effects In Laminar Shock Wave/Boundary Layer Interactions, James Ray Grisham

Mechanical and Aerospace Engineering Dissertations - Archive

Shock wave/boundary-layer interactions (SBLIs) are one of the most complex flow phenomena because of the different types of physics involved (i.e., viscous versus inviscid) and their side effects such as boundary layer separation and extreme localized heating. Control surfaces based on compliant mechanisms are becoming a reality and introduce an additional variable into the already complex SBLI, namely surface curvature. The purpose of the present work is to systematically study the effects of surface curvature on laminar, ramp-induced SBLIs. This is accomplished using numerical and theoretical approaches in the form of numerical solutions to the compressible Navier–Stokes equations and triple-deck …

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Structural Competency And Environmental Soundness Of The Recycled Base Materials In North Texas, Mohammad Faysal May 2017

Structural Competency And Environmental Soundness Of The Recycled Base Materials In North Texas, Mohammad Faysal

Civil Engineering Dissertations - Archive

Aggregates, which are derived from natural resources, are the most important raw materials used in pavement construction; however, depletion of the natural resources, increasing labor costs, and environmental concerns have led us to look for alternatives. Recycled materials, such as recycled crushed concrete aggregate (RCCA) and reclaimed asphalt pavement (RAP), can be used as an alternative to natural aggregates and can be obtained from construction of newer structures and demolition of existing structures, such as buildings, bridges, pavement, etc. Recycled materials can reduce the cost, depletion of natural resources, and construction debris. The properties of recycled materials are source-dependent, which …

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Simulation And Design Of Microbolometers For 5-14 Μm Wavelength At Oblique Incidence, Arkadeep Mitra May 2017

Simulation And Design Of Microbolometers For 5-14 Μm Wavelength At Oblique Incidence, Arkadeep Mitra

Electrical Engineering Theses - Archive

A mathematical model was developed to calculate the total power absorbed and total power reflected for a microbolometer for oblique incidence of light viz. s and p polarization by varying the angle of incidence from 1 to 89 degrees. The mathematical model was simulated using matlab in five different sensor structures. A comparative study based on simulation involving the different sensor structures was done. The maximum partial absorbed power for s polarization was 0.9559-0.0000i, 0.9112-0.0000i, 0.9617-0.0000i, 0.3057-0.0000i, 0.9627-0.000i for sensor structure I, 1, 2, 3, 4 at angle of incidence of 73 degree, 1 degree, 66-67 degree, 1-3 degree, 60 …

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A Study Of Consensus And Collision Avoidance In A Platoon Of Vehicles Using Adaptive Cruise Control, Audrey Devin Porter May 2017

A Study Of Consensus And Collision Avoidance In A Platoon Of Vehicles Using Adaptive Cruise Control, Audrey Devin Porter

Electrical Engineering Theses - Archive

Vehicle platooning has been the subject of much research. Transfer function analysis of intervehicle distance errors is traditionally utilized to analyze the string stability of platoons. Consensus theory has been the subject of recent study of close-loop stability of platoons. This thesis extends the cooperative control approach to platoon behavior analysis to include the leader as an internal source of information for the communication graph of a platoon. A 1-Leader Type (1LT) graph is defined and an equation is proposed for the formation consensus values of leader and follower nodes in a platoon. Simulations are performed to support the proposed …

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T-Cell Membrane Camouflaged Nanoparticles For Treatment Of Melanoma, Gizem Oter May 2017

T-Cell Membrane Camouflaged Nanoparticles For Treatment Of Melanoma, Gizem Oter

Bioengineering Theses - Archive

Melanoma is one of the most aggressive skin cancers. The American Cancer Society reports that every hour, one person dies from melanoma. While there are a number of treatments currently available for melanoma (e.g. surgery, chemotherapy, immunotherapy, radiation therapy), these therapies face several problems, including inadequate response rates, high toxicity, and severe side effects due to non-specific delivery of anti-cancer drugs. To improve therapeutic efficiency and reduce these limitations, a multifunctional nanoparticle has been developed. Specifically, poly (lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) were coated with a cellular membrane derived from the T cell hybridoma, 19LF6 endowed with a melanoma-specific anti-gp100/ …

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Development Of An Advanced Geometry Toolkit Framework For Fitting Complex Topology-Optimized Mesh Structures, Harshit Girishkumar Jani May 2017

Development Of An Advanced Geometry Toolkit Framework For Fitting Complex Topology-Optimized Mesh Structures, Harshit Girishkumar Jani

Mechanical and Aerospace Engineering Theses - Archive

Additive Manufacturing is playing a significant role in developing complex geometries which are not possible by conventional Manufacturing Processes. Topology optimization is playing key a role in deciding conceptual design for additive manufacturing. The output of topology optimization is rough and noisy surfaces. Fitting these surfaces poses challenging task to a designer as it is a tedious and a time-consuming process. The main aim of this research is to automate the process of smoothing noisy meshes. In this research work, I have developed algorithms in MATLAB to create NURBS (Non-Uniform B-Spline) surface patches from given a set of control points. …

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A Parametric Study On Thermal Mixing Of Ambient Air And Return Air Streams In A Mixing Chamber Of A Data Center Cooling, Pavan Vijaykumar Kaulgud May 2017

A Parametric Study On Thermal Mixing Of Ambient Air And Return Air Streams In A Mixing Chamber Of A Data Center Cooling, Pavan Vijaykumar Kaulgud

Mechanical and Aerospace Engineering Theses - Archive

Thermal Mixing of ambient air and return air streams in a mixing chamber for data center cooling Keywords: Data center cooling, Air side economization, Mixing chamber geometry Pavan Kaulgud, Dr. Dereje Agonafer Air side economization is an arrangement of duct, damper and automatic control system which together allow to introduce outside air to reduce or eliminate the mechanical cooling during mild or cold weather. In this process ambient air is drawn inside from environment, passed through filter to get rid of contaminants and then is introduced to the cold aisle of data center. According to ASHRAE, use of air side …

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Finite Element Analysis Of Composite Aircraft Fuselage Frame, Aditya Milind Dandekar May 2017

Finite Element Analysis Of Composite Aircraft Fuselage Frame, Aditya Milind Dandekar

Mechanical and Aerospace Engineering Theses - Archive

Composites have been introduced in aircraft industries, for their stronger, stiffer, and lighter properties than their metal-alloys counterparts. The general purpose of an aircraft is to transport commercial or military payload. Aircraft frames primarily maintains the shape of fuselage and prevent instability of the structure. Fuselage is similar as wing in construction which consist of longitudinal elements (longerons and stringers), transverse elements (frames and bulkheads) and its external skin. The fuselage is subjected to forces such as the wing reactions, landing gear reaction, empennage reaction, inertia forces subjected due to size and weight, internal pressure forces due to high altitude. …

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Steady State And Transient Analytical Modelling Of Non-Uniform Convective Cooling Of A Microprocessor Chip Due To Jet Impingement, Swapnil D. Luhar May 2017

Steady State And Transient Analytical Modelling Of Non-Uniform Convective Cooling Of A Microprocessor Chip Due To Jet Impingement, Swapnil D. Luhar

Mechanical and Aerospace Engineering Theses - Archive

Heat removal from microprocessor chips with multiple regions of dynamic heat generation remains a critical technological challenge. Excessive temperature rise is undesirable for performance as well as reliability. Jet impingement cooling has been widely investigated as a potential thermal management technique due to the capability of localized cooling and of dynamically following the heat generation distribution. A jet offers large local convective heat transfer coefficient, for which theoretical models and correlations have been proposed for a variety of scenarios. However, not much work exists on using this information to determine the resulting temperature distribution. This work addresses this need by …

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